Exerciser



FIG. 1 is a front perspective view of an embodiment of the exerciser;

FIG. 2 is a rear perspective view of the embodiment of the exerciser ofFIG. 1; and,

FIG. 3 is a top plan view of the embodiment of the exerciser of FIG. 1,wherein the bottom plan view of the exerciser is identical to the topplan view.

The ornamental design for an exerciser, as shown and described.